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Title: Structure of p-shell nuclei using three-nucleon interactions evolved with the similarity renormalization group

Journal Article · · Physical Review C, Nuclear Physics
 [1];  [2];  [3];  [4];  [1];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Iowa State Univ., Ames, IA (United States)
  3. The Ohio State Univ., Columbus, OH (United States)
  4. TRIUMF, Vancouver, BC (Canada)

The similarity renormalization group (SRG) is used to soften interactions for ab initio nuclear structure calculations by decoupling low- and high-energy Hamiltonian matrix elements. The substantial contribution of both initial and SRG-induced three-nucleon forces requires their consistent evolution in a three-particle basis space before applying them to larger nuclei. While, in principle, the evolved Hamiltonians are unitarily equivalent, in practice the need for basis truncation introduces deviations, which must be monitored. Here we present benchmark no-core full configuration calculations with SRG-evolved interactions in p-shell nuclei over a wide range of softening. As a result, these calculations are used to assess convergence properties, extrapolation techniques, and the dependence of energies, including four-body contributions, on the SRG resolution scale.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1240055
Alternate ID(s):
OSTI ID: 1102667
Report Number(s):
LLNL-JRNL-622712; PRVCAN
Journal Information:
Physical Review C, Nuclear Physics, Vol. 87, Issue 5; ISSN 0556-2813
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 66 works
Citation information provided by
Web of Science

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Cited By (14)

The long and winding road from chiral effective Lagrangians to nuclear structure journal February 2016
Coupled-cluster computations of atomic nuclei journal September 2014
In-medium similarity renormalization group for closed and open-shell nuclei journal December 2016
Nuclear Structure from the In-Medium Similarity Renormalization Group journal June 2018
Pre-processing the nuclear many-body problem: Importance truncation versus tensor factorization techniques journal June 2019
Local Nucleon-Nucleon and Three-Nucleon Interactions Within Chiral Effective Field Theory journal January 2020
Coupled-cluster computations of atomic nuclei text January 2013
$\it{Ab}$ $\it{initio}$ nuclear many-body perturbation calculations in the Hartree-Fock basis text January 2016
In-Medium Similarity Renormalization Group for Closed and Open-Shell Nuclei text January 2016
Microscopic Clustering in Light Nuclei text January 2017
Few- and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces text January 2018
Few- and many-nucleon systems with semilocal coordinate-space regularized chiral two- and three-body forces text January 2018
Pre-processing the nuclear many-body problem: Importance truncation versus tensor factorization techniques text January 2019
Local nucleon-nucleon and three-nucleon interactions within chiral effective field theory text January 2020

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